RS232 to RS485/422 serial converter Powered from double ... blocks for tamper resistance and DIP switches for configuration. Isolated power and ground generated internally. No power is drawn ... side requires a power supply. Model485P is a basic isolated converter. The RS-232 side draws power from the ... L*W*H120mm*33mm*16.5mmShellIronColor White Weight200g RS232 to 485/422 converter(Isolation)-Model485P